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Synthesis, characterization, and thermal properties of alkyl-functional naphthoxazines

机译:烷基官能萘并恶嗪的合成,表征和热性质

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摘要

A series of alkyl-functional naphthoxazine resins having various alkyl chain lengths from C1 to C18 are synthesized with a high yield and high purity by the reactions of 1,5-dihydroxynaphthalene, formaldehyde, and aliphatic amines. The proposed chemical structures of the naphthoxazines are confirmed by high-resolution mass spectrometry, 1H nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy, and pyrolysis mass spectrometry studies. The alkyl-functional naphthoxazines have shown low polymerization temperature characteristics where polymerization of these monomers is achieved in the range of 150-170°C yielding cross-linked polynaphthoxazines. The low-temperature polymerization characteristics and the associated thermal degradation behaviors are studied.
机译:通过1,5-二羟基萘,甲醛和脂族胺的反应,以高收率和高纯度合成了具有从C1至C18的各种烷基链长度的一系列烷基官能的萘并恶嗪树脂。提议的萘并恶嗪的化学结构已通过高分辨率质谱,1H核磁共振波谱,傅里叶变换红外光谱和热解质谱研究得到了证实。烷基官能的萘并恶嗪显示出低的聚合温度特性,其中这些单体的聚合在150-170℃的范围内实现,从而产生交联的聚萘并恶嗪。研究了低温聚合特性和相关的热降解行为。

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